African Wildlife Foundation (AWF) applauds the move by the U.S. Fish and Wildlife Service (USFWS) today to list the southern white rhino (Ceratotherium simum simum) as threatened under the Endangered Species Act. While this rhino subspecies is not in danger of extinction, USFWS noted that its similarity to other subspecies required further protective measures, particularly in light of the rising illegal rhino horn trade.